Is it pregnancy ..

So I missed my period, just started having regular periods the last three months. And this whole last week I’ve had severe breast pain and a few strong “cramps” and now it just feels like pulling. Yesterday and today around the same time (9:40am) while going to work I had to throw up on the side of the road because nausea hit super fast and I didn’t have an option. I took a test today around noon and got a negative but I now have some back discomfort. It seems like I should have a positive by now with all these symptoms but nothing .. has anyone had a negative test this far past and ended up being positive a few days later ? I thought I saw a very faint first line but the second one was much darker so I might test again next week...